Who is Alfred Wegener and what part does he play in continental drift?

The theory of continental drift is most associated with the scientist Alfred Wegener. In the early 20th century, Wegener published a paper explaining his theory that the continental landmasses were “drifting†across the Earth, sometimes plowing through oceans and into each other.

Similarly, what is the hypothesis of continental drift?

The continental drift hypothesis was developed in the early part of the 20th century, mostly by Alfred Wegener. Wegener said that continents move around on Earth's surface and that they were once joined together as a single supercontinent.

Likewise, what continent did Alfred Wegener visit and die at while researching his idea of continental drift? On an unknown day in mid-November 1930, Alfred Wegener died on his fourth expedition to Greenland. He was 50 years old. He had been trying to resupply a remote camp in very bad weather.

Beside above, what two continents did Alfred Wegener first look at and wonder if they fit together?

Alfred Wegener made an observation. Africa and South America appeared to fit together like puzzle pieces.

What are the 4 pieces of evidence for continental drift?

The evidence for continental drift included the fit of the continents; the distribution of ancient fossils, rocks, and mountain ranges; and the locations of ancient climatic zones.

Related Question Answers

What are the 4 evidence of continental drift?

They based their idea of continental drift on several lines of evidence: fit of the continents, paleoclimate indicators, truncated geologic features, and fossils.

What is the best evidence of plate tectonics?

Modern continents hold clues to their distant past. Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together. Fossils tell us when and where plants and animals once existed.

What was the response to Wegener's hypothesis?

The main problem with Wegener's hypothesis of Continental Drift was the lack of a mechanism. He did not have an explanation for how the continents moved. His attempt to explain it using tides only made things worse. But both Galileo and Darwin had serious flaws in their theories when they were first presented.

Why was Wegener's continental drift rejected?

The main reason that Wegener's hypothesis was not accepted was because he suggested no mechanism for moving the continents. He thought the force of Earth's spin was sufficient to cause continents to move, but geologists knew that rocks are too strong for this to be true.

What are 6 pieces of evidence that support continental drift?

What are six pieces of evidence for the continental drift theory? Reptile Fossils- dinosaurs couldn't have swam across a vast ocean. Plant Fossils- all these regions were once connected and had similar climates. Tropical plants found in Arctic- tropical plants can't grow in cold climates.

What evidence supports the theory of Pangea?

Evidence of existence

Fossil evidence for Pangaea includes the presence of similar and identical species on continents that are now great distances apart.

Who is the father of the continental drift?

Alfred Wegener

Is there a possibility that Pangea can happen again?

Pangaea Proxima (also called Pangaea Ultima, Neopangaea, and Pangaea II) is a possible future supercontinent configuration. Consistent with the supercontinent cycle, Pangaea Proxima could occur within the next 300 million years.

Why do South America and Africa seem to fit together?

Wegener suggested that the continents were all together in the geologic past, forming the supercontinent Pangaea. By 160 million years ago, continents had begun to drift to their present locations. Today's coastlines of South America and Africa are a match because these two continents were once joined together.

What era did Pangea start to break up?

The supercontinent began to break apart about 200 million years ago, during the Early Jurassic Epoch (201 million to 174 million years ago), eventually forming the modern continents and the Atlantic and Indian oceans.

What clues exist that Africa and South America were once connected?

Evidence for continental drift

Wegener knew that fossil plants and animals such as mesosaurs, a freshwater reptile found only South America and Africa during the Permian period, could be found on many continents. He also matched up rocks on either side of the Atlantic Ocean like puzzle pieces.

What causes the plates to move?

The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth's mantle and fit snugly against one another. The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other.

Why do the continents fit together like a puzzle?

Ever notice that the earth's continents are somewhat fit each other along continental margins( edges), it is because it was once a supercontinent called PANGEA. Pangaea existed 200 million years ago and completely underwent continental drift 50 million years ago.

What happens when the Earth's plates move?

When the plates move they collide or spread apart allowing the very hot molten material called lava to escape from the mantle. When collisions occur they produce mountains, deep underwater valleys called trenches, and volcanoes. The Earth is producing "new" crust where two plates are diverging or spreading apart.

What is the jigsaw fit theory?

The similarity in outline of the coastlines of eastern South America and West Africa had been noted for some time. The best fit is obtained if the coastlines are matched at a depth of 1,000 metres below current sea level. Eastern South American and West African.

Which two continents have the most obvious fit of the coastlines?

South America and Africa has the most obvious fit of the coastlines.

What is Wegener's theory?

In the early 20th century, Wegener published a paper explaining his theory that the continental landmasses were “drifting” across the Earth, sometimes plowing through oceans and into each other. He called this movement continental drift.

Why did Wegener's theory take more than 50 years?

It took more than 50 years for Wegener's theory to be accepted. One of the reasons was that it was difficult to work out how whole continents could move. It was not until the 1960s that enough evidence was discovered to support the theory fully. This slideshow explains Wegener's theory.

What is the force that moves the continents?

The movement of these tectonic plates is likely caused by convection currents in the molten rock in Earth's mantle below the crust. Earthquakes and volcanoes are the short-term results of this tectonic movement. The long-term result of plate tectonics is the movement of entire continents over millions of years (Fig.

What do you call the supercontinent?

The supercontinent Pangaea is the collective name describing all of the continental landmasses when they were most recently near to one another. The positions of continents have been accurately determined back to the early Jurassic, shortly before the breakup of Pangaea (see animated image).

Where is Earth's heat energy most concentrated?

Most solar energy is absorbed at the surface, while most heat is radiated back to space by the atmosphere. Earth's average surface temperature is maintained by two large, opposing energy fluxes between the atmosphere and the ground (right)—the greenhouse effect.

Why did other scientists disagree with Wegener?

The lack of a mechanism for Continental Drift was the excuse for the scientific community to reject the theory of Continental Drift. There was sufficient evidence at the time for the theory to be accepted. The contradictions to accepted theories was perhaps the main reason Continental Drift was rejected.

How did Alfred Wegener impact the world?

During his life, Wegener made several key contributions to meteorology: he pioneered the use of balloons to track air circulation, and wrote a textbook that became standard throughout Germany. In 1906 Wegener joined an expedition to Greenland to study polar air circulation.

Is Pangea a fact?

Modern geology has shown that Pangea did actually exist. In contrast to Wegener's thinking, however, geologists note that other Pangea-like supercontinents likely preceded Pangea, including Rodinia (circa 1 billion years ago) and Pannotia (circa 600 million years ago).